What is one reason an individual may have their DEA registration revoked?

An individual's DEA registration can be revoked primarily due to involvement in a felony offense related to controlled substances. This is significant because the DEA (Drug Enforcement Administration) closely monitors the use and distribution of controlled substances to prevent abuse and illegal activity. A felony associated with controlled substances indicates a serious violation of drug laws, compromising the individual’s suitability and trustworthiness to handle such medications. This ensures that those who are authorized to prescribe or dispense controlled substances have a legal and ethical standing that aligns with public safety and welfare.

Regarding the other options, while failure to complete continuing education might impact a professional's license, it does not directly correlate with DEA registration revocation. Not practicing for more than two years could lead to administrative actions, but it doesn't necessarily warrant a revocation. Relocating to another state is a logistical issue that can often be addressed through the proper transfer of the DEA registration, rather than resulting in a revocation.